-----------控制器代码-------------
$sql="select * from tb_user_type where usertype_level=0 and auth_id in ($auth_ids)";

$p_info=D()->query($sql);

//获取次顶级权限
$sql="select * from tb_user_type where usertype_level=1 and auth_id in ($auth_ids)";

$s_info=D()->query($sql);

$this->assign('pauth_info',$p_info);

$this->assign('sauth_info',$s_info);

$this->display();
-----------------html页代码-----------------------------
{foreach name="pauth_info" item="vo"}

<li class="explode" key="02_cat_and_goods" name="menu">
{$vo.usertype_name} <ul>
{foreach name="" item="wo"}
<li class="menu-item"><a href="#" target="main-frame">{$wo.usertype_name}</a></li>
{/foreach}
</ul>
</li>
{/foreach}
-------------------------------------------------

写的代码应该没什么错啊 为什么遍历不出来
一直显示

{foreach name="pauth_info" item="vo"}

{foreach name="" item="wo"}

{/foreach}
{/foreach}